this does not make them al qaeda but perhaps they sympathize or at least tamerlan did with that cause. we're being cautious here. it is a link on a page. there are number of links on a page authorities believe was tied to tamerlan. they are looking at all of this. it they're also seeing that perhaps the 26-year-old was in fact more of a leader in this. and the 19-year-old less of one. we talked about, 19-year-old dzhokhar tsnaraev coming to the country with family in roughly 2002, maybe early 2003. we can't confirm when tamerlan came into the country. it may be a separate time, actually. we also can't confirm whether these two men may have exited the country to do overseas training because that is a phrase, as jennifer griffin mentioned earlier that continues to come up with law enforcement authorities, overseas training, overnight and over the past few days. >> great point. that is a great point there, bret. thank you for adding that too because that is some of the mystery of the story. how does this murderous scheme, how does this get hatched? i agree with your observation, if you l